Price per model (right).

EG Range - These plugs are classed as a regular type spark plug with a thin centre electrode. Available in standard or resistor.

EGV Range - These plugs have a centre electrode of precious metal, similar to the EV range. In addition the insulator nose is an improved design to allow better gas flow around the firing end. The ground electrode is shorter and stronger, making the EGV range ideal for the most severe racing conditions.

EIX Range - Top of the range for ultimate performance. NGK's EIX range is a top quality racing plug. The EIX range of plugs are also available in standard or resistor and offer exceptional quality and value for money.